Home / 83,286.91-124,730.17-47,640.16

Finding the Fourth Proportional to 83,286.91, 124,730.17 and 47,640.16

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Solution

The fourth proportional to 83,286.91, 124,730.17 and 47,640.16 is: 71,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,286.91 : 124,730.17 = 47,640.16 : x
  2. Step 2: Convert to fraction form
    83,286.91/124,730.17 = 47,640.16/x
  3. Step 3: Cross multiply
    83,286.91x = 124,730.17 × 47,640.16
  4. Step 4: Simplify right side
    83,286.91x = 5,942,165,255.63
  5. Step 5: Solve for x
    x = 5,942,165,255.63/83,286.91
  6. Step 6: Final answer
    x = 71,345.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.